This is one of the most common comparative questions.

• OPGW (Optical Ground Wire): This cable is a metallic ground wire with integrated optical fibers. It's a conductive cable that provides both lightning protection and communication. OPGW is typically used in the topmost position of high-voltage transmission towers, replacing a conventional ground wire. It's ideal for a "backbone" network where a large, robust, and secure communication channel is needed along the main transmission line.

• ADSS (All-Dielectric Self-Supporting): This is a non-metallic, all-dielectric fiber optic cable. It does not conduct electricity and is primarily for data communication. ADSS is self-supporting and can be installed on power poles or towers, often below the OPGW or conductors. It is excellent for "branching" communication networks, distributing data to substations or facilities from the main OPGW backbone.

Our Professional Advice: Use OPGW for your main transmission lines to secure both lightning protection and your primary communication network. Use ADSS to expand your network, connecting to new facilities or lower-voltage lines where a ground wire function isn't required.